Clicking and keyboard work on the computer, and tapping and swiping works on touch devices. I was hoping this would be clear enough since I don't want to take up people's time with tutorials. Maybe we can add a separate "help" button or add this to the about page?
Yes. It would have been useful for me. I had never come across the original (2D Euclidean) game before, so I had no idea what the game objective was, nor that I was supposed to push boxes to achieve it.